24. Electric Force & Field; Gauss' Law
Coulomb's Law (Electric Force)
24. Electric Force & Field; Gauss' Law Coulomb's Law (Electric Force)
21PRACTICE PROBLEM
A tiny ink droplet of mass mo and charge q moves horizontally through the air with a viscosity η. The ink droplet is propelled by an external electric field E but is constantly opposed by retarding force Fr = -6πηrv of the air. Determine an expression for radius r of the ink droplet such that it moves with terminal velocity vt.
A tiny ink droplet of mass mo and charge q moves horizontally through the air with a viscosity η. The ink droplet is propelled by an external electric field E but is constantly opposed by retarding force Fr = -6πηrv of the air. Determine an expression for radius r of the ink droplet such that it moves with terminal velocity vt.